Boston Marathon logo
BOSTON MARATHON 2023

Richard Stocker

Bib: 4666•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Masters (Masters Men)
#0 / 9891
Top 6%
Division (M40-44)
#0 / 2241
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:15
Rank: #2371
Start → 5K
20:15 | 6:31/mi
10K· 6.21 mi
40:11
Rank: #2318 (+53)
5K → 10K
19:56 | 6:25/mi
15K· 9.32 mi
1:00:12
Rank: #2310 (+8)
10K → 15K
20:01 | 6:27/mi
20K· 12.43 mi
1:20:25
Rank: #2300 (+10)
15K → 20K
20:13 | 6:30/mi
Half· 13.11 mi
1:24:51
Rank: #2318 (-18)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:40:50
Rank: #2370 (-52)
Half → 25K
15:59 | 6:36/mi
30K· 18.64 mi
2:02:02
Rank: #2456 (-86)
25K → 30K
21:12 | 6:49/mi
20M
2:11:28
Rank: #2492 (-36)
30K → 20M
9:26 | 6:57/mi
21M
2:18:51
Rank: #2545 (-53)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:23:47
Rank: #2524 (+21)
21M → 35K
4:56 | 6:36/mi
23M
2:32:32
Rank: #2533 (-9)
35K → 23M
8:45 | 6:59/mi
24M
2:39:21
Rank: #2560 (-27)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:45:24
Rank: #2629 (-69)
24M → 40K
6:03 | 7:05/mi
25.2M
2:48:01
Rank: #2644 (-15)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:55:06
Rank: #2721 (-77)
25.2M → Finish
7:05 | 6:57/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:51
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:30:15
Pace6:53 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5720:156:3120:15
6:31
-
10K
6.21 mi10:41:5340:116:2819:56
6:25
-0:06
15K
9.32 mi11:01:541:00:126:2820:01
6:27
+0:02
20K
12.43 mi11:22:071:20:256:2820:13
6:30
+0:03
Half
13.11 mi11:26:331:24:516:284:26
6:30
0:00
25K
15.53 mi11:42:321:40:506:2915:59
6:36
+0:06
30K
18.64 mi12:03:442:02:026:3321:12
6:49
+0:13
20M
20.00 mi12:13:102:11:286:349:26
6:57
+0:08
21M
21.00 mi12:20:332:18:516:377:23
7:23
+0:26
35K
21.75 mi12:25:292:23:476:374:56
6:36
-0:47
23M
23.00 mi12:34:142:32:326:388:45
6:59
+0:23
24M
24.00 mi12:41:032:39:216:386:49
6:49
-0:10
40K
24.85 mi12:47:062:45:246:396:03
7:05
+0:16
25.2M
25.20 mi12:49:432:48:016:402:37
7:35
+0:30
Finish
26.22 mi12:56:482:55:066:417:05
6:57
-0:38

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:25 /mi

Average Pace

6:41 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:03

91% of race

Time at Steady Pace

13:26

8% of race

Time at Slower Pace

2:37

1% of race

Average Pace: 6:41 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:21:5720:156:3120:15
6:31
#2371
10K
6.21 mi10:41:5340:116:2819:56
6:25
#2318
15K
9.32 mi11:01:541:00:126:2820:01
6:27
#2310
20K
12.43 mi11:22:071:20:256:2820:13
6:30
#2300
Half
13.11 mi11:26:331:24:516:284:26
6:30
#2318
25K
15.53 mi11:42:321:40:506:2915:59
6:36
#2370
30K
18.64 mi12:03:442:02:026:3321:12
6:49
#2456
20M
20.00 mi12:13:102:11:286:349:26
6:57
#2492
21M
21.00 mi12:20:332:18:516:377:23
7:23
#2545
35K
21.75 mi12:25:292:23:476:374:56
6:36
#2524
23M
23.00 mi12:34:142:32:326:388:45
6:59
#2533
24M
24.00 mi12:41:032:39:216:386:49
6:49
#2560
40K
24.85 mi12:47:062:45:246:396:03
7:05
#2629
25.2M
25.20 mi12:49:432:48:016:402:37
7:35
#2644
Finish
26.22 mi12:56:482:55:066:417:05
6:57
#2721
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2371226122612330(Top 9%)2237(Top 15%)2237(Top 100%)
10K6.21 mi3.10 mi2318+532213+482213+482326(Top 9%)2227(Top 15%)2227(Top 99%)
15K9.32 mi3.11 mi2310+82212+12212+12330(Top 9%)2237(Top 15%)2237(Top 100%)
20K12.43 mi3.11 mi2300+102204+82204+82331(Top 9%)2234(Top 15%)2234(Top 100%)
Half13.11 mi0.68 mi2318-182222-182222-182771(Top 10%)2655(Top 17%)2655(Top 118%)
25K15.53 mi2.42 mi2370-522274-522274-522665(Top 10%)2551(Top 17%)2551(Top 114%)
30K18.64 mi3.11 mi2456-862350-762350-763128(Top 12%)2948(Top 19%)2948(Top 132%)
20M20.00 mi1.36 mi2492-362387-372387-373636(Top 14%)3388(Top 22%)3388(Top 151%)
21M21.00 mi1.00 mi2545-532436-492436-494026(Top 15%)3704(Top 24%)3704(Top 165%)
35K21.75 mi0.75 mi2524+212416+202416+202941(Top 11%)2752(Top 18%)2752(Top 123%)
23M23.00 mi1.25 mi2533-92422-62422-63700(Top 14%)3414(Top 22%)3414(Top 152%)
24M24.00 mi1.00 mi2560-272446-242446-243716(Top 14%)3402(Top 22%)3402(Top 152%)
40K24.85 mi0.85 mi2629-692510-642510-644212(Top 16%)3747(Top 25%)3747(Top 167%)
25.2M25.20 mi0.35 mi2644-152523-132523-134241(Top 16%)3711(Top 24%)3711(Top 166%)
Finish26.22 mi1.02 mi2721-772588-652588-654889(Top 18%)4186(Top 28%)4186(Top 187%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2330

Males

2237

M40-44

2237

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2326

Males

2227

M40-44

2227

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2330

Males

2237

M40-44

2237

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2331

Males

2234

M40-44

2234

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2771

Males

2655

M40-44

2655

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2665

Males

2551

M40-44

2551

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3128

Males

2948

M40-44

2948

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3636

Males

3388

M40-44

3388

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4026

Males

3704

M40-44

3704

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2941

Males

2752

M40-44

2752

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3700

Males

3414

M40-44

3414

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3716

Males

3402

M40-44

3402

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4212

Males

3747

M40-44

3747

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4241

Males

3711

M40-44

3711

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4889

Males

4186

M40-44

4186

Passing Analysis

Category:
Athletes Passed
550
Passed By
900
Net Change
-350
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2371
5K → 10K14996+53#2371#2318
10K → 15K8072+8#2318#2310
15K → 20K6858+10#2310#2300
20K → Half422-18#2300#2318
Half → 25K3183-52#2318#2370
25K → 30K39125-86#2370#2456
30K → 20M2561-36#2456#2492
20M → 21M2174-53#2492#2545
21M → 35K287+21#2545#2524
35K → 23M4251-9#2524#2533
23M → 24M2249-27#2533#2560
24M → 40K1988-69#2560#2629
40K → 25.2M621-15#2629#2644
25.2M → Finish1693-77#2644#2721
TOTALS550900-350
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing